SDC 632 Series 2 Amp Regulated...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$511.00
$328.01
SDC SDC 632 Series - 2 Amp Regulated & Filtered Low Voltage Power Supply SDC-632

SDC 632 Series 2 Amp Regulated & Filtered Low Voltage Power Supply with Dual Voltage Selection

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Model: 632RF
$511.00
$328.01

In Stock (leaves warehouse same day if ordered before 3pm ET)

$511.00
$328.01
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SDC 632 Series 2 Amp Regulated & Filtered Low Voltage Power Supply with Dual Voltage Selection

Professional Access Control Power Solution

The SDC 632 Series power supply delivers regulated and filtered 2 amp DC power specifically engineered for electric locks and access control systems. This hybrid design combines switching power supply efficiency with linear power supply inductive load handling capability, featuring field selectable dual voltage operation and Class 2 output rating. Available in three configurations (632RF, 632RFA, 632RFL) with varying cabinet options to meet diverse installation requirements.

Professional Features & Benefits

  • 2 Amp Current Capacity: Provides sufficient power for multi-door applications and inductive loads with reliable performance under demanding conditions.
  • Regulated and Filtered Linear DC Power: Ensures clean, steady power delivery with surge suppression to protect connected devices from voltage spikes and transients.
  • Field Selectable Dual Voltage: Flexible configuration options allow adaptation to various system voltage requirements without equipment changes.
  • Hybrid Power Design: Combines switching power supply efficiency with linear power supply inductive load handling capability for optimal performance.
  • Fire/Emergency Release Input: Integrated safety feature provides immediate power control during emergency situations for code compliance.
  • Isolated Battery Charging Circuit: Built-in battery backup support with low battery disconnect protection ensures continuous operation during power outages.
  • Multiple Model Options: Available as 632RF with cabinet, 632RFA with large cabinet, or 632RFL without cabinet for flexible installation configurations.
  • UL Certified Performance: UL 294 Access Control System Units and UL 603 Power Supply certifications ensure compliance with safety and performance standards.

Technical Specifications

  • Commercial/Residential: Commercial
  • Current: 2A
  • Department: Door Hardware
  • Electronic: Yes
  • PDF:SDC Full Catalog: https://zensupply.com/content/pdf/lcn/CondensedHardwareBrochure
  • Product Category: Electronic Access Controls
  • Product Group: Electronic Access Controls
  • Product Model: 632RF, 632RFA, 632RFL
  • Product Subgroup: Controllers, Power Supplies and Transformers
  • Product Type: Power Supplies
  • Product Voltage: 120V
  • Series: 632 Series
  • Subcategory: Power Supply

Professional Applications

  • Commercial Building Security Systems
  • Multi-Door Access Control Installations
  • Healthcare Facility Access Control
  • Educational Institution Safety Systems
  • Industrial Facility Monitoring
  • Fire & Life Safety Equipment Integration
  • Electric Lock Power Distribution

Why Choose SDC Quality?

SDC 632 Series power supplies feature heavy-duty circuitry specifically designed for access control applications where 75-85% of operating problems stem from power issues. The hybrid design with regulated and filtered output, combined with UL 294 and UL 603 certifications, ensures reliable performance for demanding commercial installations. Engineered to address the unique power requirements of access control systems with surge protection and clean DC current delivery.

Manufacturer Resources

SDC Full Catalog

Product Specs

Subcategory:
Power Supply
Series:
632 Series
Product Group:
Electronic Access Controls
Product Subgroup:
Controllers, Power Supplies and Transformers
Commercial/Residential:
Commercial
Product Type:
Power Supplies
Electronic:
Yes
Current:
2A
Product Model:
632RF, 632RFA, 632RFL
Product Voltage:
120V
Product Category:
Electronic Access Controls
Department:
Door Hardware

SDC 632RF – Frequently Asked Questions

1) Will the SDC 632 Series power supply run 12V locks or 24V locks?
Both. The 632 is a field selectable dual voltage supply, so the installer sets the output at the board rather than ordering a voltage-specific part. That matters when a building mixes 12V strikes with 24V mag locks or motorized latch retraction trim: one part number covers either, and the setting can change later if the lock does. Output is 2A, regulated and filtered, with Class 2 output rating.
2) What is the difference between the SDC 632RF, 632RFA and 632RFL?
Cabinet, and nothing else in the name. The 632RF ships with a cabinet, the 632RFA with a large cabinet, and the 632RFL is the board less cabinet. Pick the RFA when you need room for backup batteries or add-on relay modules inside the enclosure, and the RFL when the board is going into a rack, an existing access control can, or another manufacturer's enclosure.
3) Is a 2 amp power supply enough for my access control doors, or do I need something bigger?
2A of regulated DC covers a small multi-door run of electric strikes or a couple of mag locks, and the 632 is built to handle inductive lock loads because it pairs switching supply efficiency with linear inductive load handling. If the load runs past 2A, go up in the line rather than paralleling supplies: the Securitron AQL4 is a 12/24VDC switching supply at 4/3 amps, the BEST PS161-6 gives 12/24V at 6A capacity, and the Altronix AL1024ULACMCB puts out 24VDC at 10A across 8 PTC outputs. Motorized latch retraction devices in particular pull a heavy inrush and usually want a dedicated supply such as the BEST RPSMLR2.
4) Does the SDC 632 power supply drop power to the mag locks on a fire alarm signal?
There's a fire/emergency release input on the board that cuts power to the connected locks when the alarm system signals it, which is how mag locks and fail safe strikes are released on alarm. You can order the 632 with a manual reset switch on that circuit, so power does not restore to the locks until someone resets it deliberately rather than the moment the alarm clears. Specify that option when the authority having jurisdiction wants a supervised, deliberate restore.
5) Is the SDC 632 UL listed for access control?
Two listings apply: UL 294 for access control system units and UL 603 for power supplies. That is the pair a plan reviewer or an institutional spec normally asks for on an access control power supply, so it satisfies both the control function and the supply itself.
6) Can I add relay control to the SDC 632 so it switches multiple doors instead of just supplying power?
Door control modules mount into the 632 and turn it from a plain supply into a controller. The XUR-1 gives two relays, the XUR2-4 four, and the XUR4-8 eight, all microprocessor controlled. Other choices are the XFB4 multiple fused output relay for splitting the 2A into protected door circuits, the XCR4 four station control relay, the XACM-1 six station input control relay, the XEMC exit device sequencer for sequencing a pair of doors, and the X12VR voltage control regulator for pulling a 12VDC leg off the supply. A module selection is required on the order, and None (Standard) is the choice when you want the supply alone.
7) What is the closest equivalent to the SDC 632 power supply from another manufacturer?
The Von Duprin PS902 base power supply is the nearest match: it is a 2 amp field selectable 12/24 VDC supply for access control, the same current capacity and field selectable dual voltage arrangement the SDC 632 Series provides at 2A. The Von Duprin PS902 is a Grade 1 product. The RCI DKPS-2A is a second 2 amp 12/24VDC option and adds 8 outputs, so it distributes power to multiple openings from the supply itself, where the 632 Series handles multi-door distribution through add-on modules such as the XFB4 multiple fused output relay or the XCR4 four station control relay.
8) I only need to power one electric strike. Is there a smaller power supply than the SDC 632?
For a single low draw device, a 1 amp supply covers it. The Adams Rite PS-1 is a regulated 1 amp 12/24 volt DC supply with battery backup, and the Securitron AQD1 is a 12/24 VDC 1 amp switching supply. The Command Access PS1 Series is a 24VDC linear supply with 1 amp output, fixed at 24V rather than dual voltage. The SDC 632 Series is a 2A supply, so it carries headroom for a second opening or an inductive load; the 1 amp units are sized to one device.
9) The SDC 632 is not enough amperage for my job. What do I use instead?
Step up in output. The Securitron AQL4 is a 12/24VDC switching supply rated 4 amps at 12V and 3 amps at 24V. The BEST PS161-6 takes 120V input and delivers 12/24V output at 6 amp capacity, and it is built for delayed egress exit devices. For a large 24V load, the Altronix AL1024ULACMCB runs 24VDC at 10 amps across 8 PTC outputs from a 115VAC 60Hz input, and the Securitron AQS1210 gives 12 VDC at 10 amps. All of these exceed the 2A the SDC 632 Series delivers.
10) Will the SDC 632 power a motorized latch retraction exit device?
Motorized latch retraction draws a heavy inrush at the moment the motor pulls the latch, and it is normally powered from a supply built for that duty. The BEST RPSMLR2 Series is a power supply specifically for motorized latch retraction exit devices. The Command Access PS210 is a UL 6E/CSA linear supply rated 1.5A at 24VDC with boost circuitry, which is the approach used where a device needs more current on actuation than it draws at rest. The SDC 632 Series is a 2A hybrid supply that combines switching efficiency with linear inductive load handling, so confirm the exit device manufacturer's stated inrush and continuous draw against 2A before specifying it.
11) Does the SDC 632 support battery backup for when the power goes out?
The board carries an isolated battery charging circuit with low battery disconnect, so batteries stay charged in normal operation and get cut loose before they are damaged by deep discharge. Batteries are a separate order; the 632RFA with the large cabinet is the configuration with room for them.
12) How do I keep tenants and staff out of the access control power supply cabinet?
Order the 632 with the key lock cover option, which locks the enclosure cover. You can also choose where the power switch lives: inside the cabinet enclosure, where only someone with the cabinet open can kill power, or on the cabinet cover for quick service access without opening it. In a school, hospital corridor, or any public-side closet, put the switch inside and add the key lock cover.
13) Is a switching power supply or a linear one better for electric locks?
Linear supplies handle the inductive kick of a solenoid strike or mag lock cleanly but run hot and heavy; switching supplies are efficient and compact but can behave badly under that inductive load. The 632 is a hybrid, combining switching efficiency with linear inductive load handling, with regulated and filtered output and surge suppression on the DC. If you want a straight linear supply instead, the Command Access PS204/204B is a 2A 24VDC linear unit with battery backup; for a straight switching unit at similar capacity the Securitron AQD1 is 12/24 VDC at 1 amp.
14) What is the difference between the SDC 632 and a plug in power supply like the ROFU 9126T?
The ROFU 9126T is a plug in mini power supply, 12 VDC at 1.5A, with a time delay built in. It is a single voltage, single device unit that plugs into an outlet. The SDC 632 Series is a 2A supply available as the 632RF with cabinet, the 632RFA with large cabinet, or the 632RFL less cabinet, with a fire/emergency release input, an isolated battery charging circuit, and optional door control modules such as the XUR-1 two relay or XUR4-8 eight relay microprocessor controllers. If the opening needs release on fire alarm, battery standby, or relay logic, the plug in unit does not carry those functions.
15) Is the Detex 10-800 a substitute for the SDC 632 power supply?
Not directly. The Detex 10-800 Series is a universal logic controller that includes a 120VAC/24VDC power supply and battery backup, so the power supply is one part of a controller assembly rather than the product itself. The SDC 632 Series is a 2A regulated and filtered supply on its own, with logic added through separate modules such as the XACM-1 six station input control relay or the XEMC exit device sequencer. Buy the Detex when you want the logic and the power in one listed assembly; buy the 632 Series when the head end logic already exists and you are replacing or adding power.
16) Which access control power supply should I standardize on across a facility with mixed 12V and 24V locks?
A field selectable dual voltage supply lets one part number cover both. The SDC 632 Series is field selectable dual voltage at 2A with 120V input, and the Von Duprin PS902 is 2A 12/24 VDC field selectable. The RCI DKPS-2A is 12/24VDC at 2A with 8 outputs, and the Securitron AQL4 covers 12/24VDC at 4/3 amps if some closets need more headroom. Fixed voltage units such as the Aiphone AC-PS1250 at 12V DC 5A or the Command Access PS1 at 24VDC would require stocking two different supplies.
17) I need battery backup on an access control power supply. What are my options?
The SDC 632 Series has an isolated battery charging circuit with low battery disconnect, so standby batteries connect to the supply itself. Among comparable units, the Command Access PS204/204B is a linear supply rated 2A at 24VDC with battery backup, the Adams Rite PS-1 is a 1 amp 12/24 volt DC regulated supply with battery backup, and the Detex 10-800 Series includes a 120VAC/24VDC supply with battery backup as part of its controller. The PS204/204B matches the 632 Series on current at 2A but is fixed at 24VDC rather than dual voltage.
18) Is the ROFU power transfer hinge an alternative to the SDC 632?
No. The ROFU 10305-LA/10306-LA is a tamper resistant power transfer hinge rated 1.5A at 42V in a plastic white finish. It carries power across the gap from the frame into the door leaf; it does not generate power. It works alongside a supply rather than in place of one. The SDC 632 Series is the 120V input supply that produces the regulated and filtered DC the hinge would then pass to the lock.
19) Is the SDC 632 power supply suitable for a house or a small residential application?
No. The 632 is a commercial unit, built for multi-door access control in commercial buildings, healthcare, schools and industrial sites. For a single residential door or a low-draw strike, a plug-in unit is the sensible size: the ROFU 9126T is a plug in mini power supply at 12 VDC / 1.5A with a time delay built in.
20) I already have a power supply in the closet and just need control for the doors. What do I order?
When the DC source exists, the piece you need is control rather than another supply. The BEST ELR150 Series is a power supply control module for electronic access control, and the RCI DKPS-2A brings 8 outputs at 12/24VDC 2A if you want distribution and power together. On the SDC 632 Series, that control is ordered as a door control module against the supply, including the XUR2-4 four relay microprocessor controller, the XFB4 multiple fused output relay, and the X12VR 12VDC voltage control regulator, so the same cabinet holds both the source and the switching.
21) I am mounting into an existing enclosure. Which access control power supply comes without a cabinet?
Order the SDC 632RFL, the less cabinet version of the 632 Series, when the board goes into a rack, a head end enclosure, or a cabinet already on the wall. The 632RF ships with a cabinet and the 632RFA with a large cabinet if you need the housing. Among comparable units, the Locknetics LP Series is supplied with an enclosure, and the Altronix AL1024ULACMCB comes in a grey enclosure, so those are specified as complete boxed assemblies.
22) Which power supply should I pick for an intercom or entry kit rather than a standalone lock?
Match the supply to the system it feeds. The Aiphone AC-PS1250 is a UL listed 12V DC 5A supply built for Aiphone AC Series access control kits, so it is the correct pick when the kit is the head end. The ROFU 9102-12D UL/9102-24D takes 10/120VAC 60Hz input and is offered in 12V and 24V variants. The SDC 632 Series is a general purpose 2A supply for electric locks and access control, with a fire/emergency release input for code driven release, and it is not tied to one manufacturer's kit.
How fast can I get the SDC 632RF delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the SDC 632RF come with a warranty?
Absolutely. The SDC 632RF is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the SDC 632RF?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
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